js判断字符串中出现次数最多的字符 并统计出现次数

来源:互联网 发布:网络延迟单位 编辑:程序博客网 时间:2024/05/21 19:26
<!DOCTYPE html><html lang="en"><head>    <meta charset="UTF-8">    <title>Document</title></head><body>    <script>        var str = "abcdefgaaaaaaddda";        var obj = [];        var arr = [];        var letter;        for(var i = 0,len = str.length;i<len;i++){            letter = str[i];            if(!obj[letter]){                obj[letter] = 1;            }else{                obj[letter]++;            }        }        var max_key,max_num=0;        for(key in obj){            if(max_num <obj[key]){                max_num = obj[key];                max_key = key;            }        }        console.log("字母:"+max_key+" 次数:"+max_num);    </script></body></html>
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